CNBC's Scott Cohn reports hackers have been working overtime, breaching Reputation.com, Living Social and the Twitter account of the Guardian in the UK. Even the Army Corps of Engineers National Inventory of Dams and the Department of Labor were compromised.

Stocks are closing mostly lower after another batch of weak earnings reports weighs on the market. Poor earnings from Goodyear, Verisign, Interpublic and other companies disappointed investors. Three stocks fell for every two that rose on the New York Stock Exchange.

Oct 25- Verisign Inc's third-quarter results modestly beat estimates, but the company that assigns Internet protocol addresses said the Commerce Department may not complete its contract review before it expires on Nov. 30, sending its shares down 15 percent after market.